Julia, like you I went to Stirling Castle on my honeymoon. We're from Chicago, and we'd planned to come to the UK even before we got engaged, so we just took the trip as-planned and attended World Con in Bristol before we took off for The North. My husband is of Scots descent and wanted to see the land of his ancestors. We toured all 'round, making our base at a lovely B&B in Stirling and taking day trips. What a tour we had...we hired a car, steeled ourselves to drive on the unfamiliar side of the road, and took off.
Sigh.